TNS:operation timed out - on different subnets

I am having a problem with Oracle on a companys local network. The problem is manifested by
TNS-12535: TNS:operation timed out
error which happens when client repetitively makes connection to Oracle instance located on a different subnet (going via the network backbone). To illustrate this problem I wrote a simple batch file using SQLPLUS. The attached files:
pingconnect.cmd, this command file executes a single SQL query in an infinite loop :
@echo off
:a
sqlplus -S scott/tiger@oratns @seldual.sql
goto a:
seldual.sql - simple query that gets executed in the loop:
select * from dual;
exit
sqlnet.log error
Fatal NI connect error 12535, connecting to:
(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=host)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=svcname)(CID=(PROGRAM=C:\oracle\ora92\bin\SQLPLUS.EXE)(HOST=ADMITRIYLTW2K)(USER=user))))
VERSION INFORMATION:
TNS for 32-bit Windows: Version 9.2.0.5.0 - Production
Windows NT TCP/IP NT Protocol Adapter for 32-bit Windows: Version 9.2.0.5.0 - Production
Time: 29-APR-2004 10:21:07
Tracing not turned on.
Tns error struct:
nr err code: 0
ns main err code: 12535
TNS-12535: TNS:operation timed out
ns secondary err code: 12560
nt main err code: 505
TNS-00505: Operation timed out
nt secondary err code: 60
nt OS err code: 0
When I ran several (for example 7) instances of pingconnect.cmd, it runs for about 3-5 minutes and then fails with error TNS-12535 (see sqlnet.log). This happens with both Oracle 9i and 8i. This only happens when the client and server are located on the different subnets. This is confirmed by a network engineer who worked with me while I was performing tests on various network configurations.
I am looking for the Oracle network tuning parameters to eliminate this problem. Any suggestions?

Is it related?I can not say it is related with 100% certainty.
You can conclude I had a REALLY lucky guess or there is high correlation between VM & having TNS-12535 error.
It is your system & you are free to (ab)use it any way you choose to do so.
We both know SQL*Net can & does work as advertised, but requires a properly configured OS & Network underneath it.

Similar Messages

TNS-12535: TNS:operation timed out with ORA-609

Hi All,
In 11gR2 Database on Linux ,I am getting the below error for one client only -
This is a c++ application which is accessing database from different linux machines with Oracle Client installed on each machine(OCI).
C++ application is working fine from all linux machines except the one which in mentioned in the below alert log error.
But from this client I can connect to the database using sql*client -
The Error is
====================================
Fatal NI connect error 12170.
   VERSION INFORMATION:
         TNS for Linux: Version 11.2.0.3.0 - Production
         Oracle Bequeath NT Protocol Adapter for Linux: Version 11.2.0.3.0 - Production
         TCP/IP NT Protocol Adapter for Linux: Version 11.2.0.3.0 - Production
   Time: 07-AUG-2013 18:19:51
   Tracing not turned on.
   Tns error struct:
     ns main err code: 12535
TNS-12535: TNS:operation timed out
     ns secondary err code: 12606
     nt main err code: 0
     nt secondary err code: 0
     nt OS err code: 0
   Client address: (ADDRESS=(PROTOCOL=tcp)(HOST=xx.xx.xxx.55)(PORT=57181))
Wed Aug 07 18:22:02 2013
piodr aborting process unknown ospid (29122) as a result of ORA-609
Port Number in client address is keep changing.
====================================
C++ application captures below error messages on client -
Error - ORA-03135: connection lost con
Error - ORA-12636: Packet send failed
=======================================
I have tried to increase the
SQLNET.INBOUND_CONNECT_TIMEOUT and
Listener.ora: INBOUND_CONNECT_TIMEOUT_listener_name
But it is not working.
I have also tried the steps mentioned in the document id Doc ID 119706.1 and Doc ID 1116960.1 but no luck.
Please suggest any other things that I can check.
Thanks,
Abhijit

please, refer to:
https://forums.oracle.com/thread/2434970

TNS-12535 TNS:operation timed out - Win 7 - WAN

Hi!
Database Version: Oracle 11.2.0.2
Server OS: Linux 64bit
Database server "A" at different location (connecting through a 10 MBPS link - latency 15 ms).
I can ping to server.
When i connect to server "A" from client on Windows 7 I got TNS-12535 error (All Win 7 clients).
Firewall on client is down.
When i connect to server"A" from client on Win XP or Win 2003 server is OK.
Both TNSNAMES.ora and SQLNET.ora are the same on each client.
tnsnames.ora
db11 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.10.0.10)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = db11)
From all clients I can connect to local database server "B" without problem.
Laptop with Win 7 carried to location "A" can connect to server "A".
I've tried Oracle clients from 10.2 to 11.2 and in each case 'tnsping db11' give TNS-12535 error.

You are NOT going to like this answer, but all is symptomatic of Firewall between client & server.
bcm@bcm-laptop:~$ oerr tns 12535
12535, 00000, "TNS:operation timed out"
// *Cause: The requested operation could not be completed within the time out
// period.
// *Action: Look at the documentation on the secondary errors for possible
// remedy. See SQLNET.LOG to find secondary error if not provided explicitly.
// Turn on tracing to gather more information.When you get desperate, you'll need to start packet sniffing using Ethereal or Wireshark.

TNS-12535: TNS:operation timed out & TNS-00505: Operation timed out problem

Hi all,
I am getting below error frequently on different ports + (55733 55758 56110 59365 62950 63573 63790 63992) + and connecting automatically after some period.
Fatal NI connect error 12170.
VERSION INFORMATION:
TNS for Linux: Version 11.2.0.2.0 - Production
Oracle Bequeath NT Protocol Adapter for Linux: Version 11.2.0.2.0 - Production
TCP/IP NT Protocol Adapter for Linux: Version 11.2.0.2.0 - Production
Time: 18-MAR-2011 09:16:27
Tracing not turned on.
Tns error struct:
ns main err code: 12535
TNS-12535: TNS:operation timed out
ns secondary err code: 12560
nt main err code: 505
TNS-00505: Operation timed out
nt secondary err code: 110
nt OS err code: 0
Client address: (ADDRESS=(PROTOCOL=tcp)(HOST=localhost.localdomain.com)(+ PORT=55733 +))
Please help me why this happening frequently and conencting automatically in this regard,
Thanks,

Hi Sunny,
Yeah connection is there but getting disconnect frequently and reconnecting again....
I was trying to make that string as italic so put the '+' symbol, and doesn't have + symbol in original file.
Please help
Edited by: user7280060 on Mar 24, 2011 1:55 AM

Java.sql.SQLException: ORA-12535: TNS:operation timed out

Hello,
I am trying my first JDBC connection using a code sample called SingleConnection.
The code functions properly until an attempt to connect to the database (the main goal to the exercise, I know). I receive a java.sql.SQLException: ORA-12535: TNS:operation timed out error. The ConnectString is all good, and several different values have been tried. Any help would be appreciated.
Thanks,
Jeff

Hello,
My problem is solved. It was a firewall issue.
Cheers,
Jeff

Oracle 10g on Windows 7: TNS-12535: TNS:operation timed out

I installed Oracle 10g (Version 10.2.0) on Windows 7 Professional on my laptop. Everything installed cleanly, but I simply cannot get an Oracle-client communication going. For some reason, TNSPing keeps timing out, as follows:
C:\Users\Bruce>tnsping orcl
TNS Ping Utility for 32-bit Windows: Version 10.2.0.1.0 - Production on 13-SEP-2
010 17:00:09
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Used parameter files:
F:\oracle\product\10.2.0\client_1\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)
(HOST = Bruce-Desktop)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = ORCL)))
TNS-12535: TNS:operation timed out
I am using DHCP on my home network, but I turned off the firewall for this exercise. Also, I set up a static loopback connector = 192.168.100.100
Here is SQLNET.ORA:
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES)
Here is TNSNAMES.ORA:
ORCL =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = Bruce-Desktop)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = ORCL)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
Here is LISTENER.ORA:
SID_LIST_LISTENER01 =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = F:\oracle\product\10.2.0\db_2)
(PROGRAM = extproc)
LISTENER01 =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = Bruce-Laptop)(PORT = 1521))
Any help and/or guidance on how to diagnose & fix this problem would be greatly appreciated!
Thank you.

Hi Bruce,
The scenario you just provided is what you don't want. You want Bruce-Desktop to have a static address. The easiest way to have this setup properly is to look at the IP address that is assigned by the DHCP server and assign that address statically to the interface.
The way you have it now, I cannot tell which IP address Oracle will be using because that will depend on the binding order. You can control that by going to "My network places" -> "Properties" - > "Advanced" -> "Adapters and Bindings"/"Provider Order". It complicates matters though to do it that way.
Since I cannot see exactly in what state your installation is, I would suggest you start over, this time with the network setup as needed. I can help you with the setup if you are willing to go thru the installation again. Trying to guess everything that should be modified in your current installation will be too error prone.
John.
For a new, clean installation, these are the basic steps:
1. Set the computer name appropriately, something like "orahost" is a reasonable choice.
2. Set the primary DNS suffix for the computer to something like "bruce.local"
3. Set the IP address of your computer to be static (you won't even need a loopback adapter)
4. Enter the appropriate information in your hosts file, given the values I mentioned above, it should look something like:
127.0.0.1 localhost
192.168.247.120 orahost.bruce.localchange the 192.168.247.120 to whatever IP address you statically assigned in step 3
When you create the database and it wants the database name, enter <databasename>.bruce.local
Another recommendation, in that same screen, it will want the SID, I use <databasename>sid. This makes it clearer later when Oracle expects an SID instead of a connect identifier or a database name. (though most people have the sid set the same as the database name - for learning purposes, I believe you are better off with different values, in order to tell, when it wants one instead of the other - otherwise, it's hard to visualize)
This way you are mimicking an installation that is closer to a real production environment.
If you want to use DHCP, still do step 3 but reserve the IP address you assigned statically in the DHCP server, that way the static IP will match what would have been assigned by the DHCP server.
HTH,
John.

TNS:Operation Timed Out error while trying to invoke BPEL Process from sql

Hi,
I am trying to invoke a BPEL Process from PL/sql code. When i try to invoke the process, I am getting the following error message
ORA-29273 HTTP Request Failed
ORA:06512: at SYS.UTH_HTTP at line 1029
ORA:12535: TNS:Operation Timed Out
ORA:06512: at line 18
I have the SOA suite installed on my local machine...and the BPEL process that i am trying to invoke is deployed their.
Any idea what could be wrong..following is the code piece
soap_request:='<?xml version="1.0" encoding="UTF-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Header/>
<soap:Body xmlns:ns1="http://xmlns.oracle.com/Test">
<ns1:TesProcessRequest><ns1:input>is1_1land</ns1:input></ns1:TesProcessRequest>
</soap:Body>
</soap:Envelope>';
dbms_output.put_line('soap_request: '||soap_request);
utl_http.set_proxy('3.209.30.25:80', '3.209.32.149:8888');
http_req:= utl_http.begin_request('http://3.209.32.149:8888/orabpel/default/Tes/1.0 '
,'POST'
,'HTTP/1.1');
dbms_output.put_line('after Begin Request' );
utl_http.set_header(http_req, 'Content-Type', 'text/xml') ;
Please advise

you are right the file adapter doesnt invoke any bpel
process, instead it is polling the file from
directory location?If it is polling for new files, shouldn't it create a new instance of the BPEL process automatically the moment it finds a new file? In other words, should a new file trigger an instance of the BPEL process rather than being started from PL/SQL?
Can this file adapter not be invoked as bpel process
in that case?The file adapter is part of a BPEL process. The BPEL process can be invoked from e.g. PL/SQL.
In this case this file adapeter return to an RECEIVE
activity...I think this receive cannot be invoked as
a BPEL process rite?Can you explain what you mean with this?
Also , will all synchronous request return "TIMEOUT"
error, if tried to invoke from pl/sql?Only if the synchronous process instance takes more time to complete (and thus to return) than the value specified for a time-out to occur. If the instance completes in for example 10 ms and the time-out time is specified as 30 seconds, no time-out will occur.
Regards, Ronald

"ORA-12535:TNS:operation timed out" error

hi,
I want to connect to my oracle server.If I try to connect my client means"ORA-12535:TNS:operation timed out" error is shown.What should i do to the rectify this problem.Pls give me a solution.
Thanks in advance.
-reg
Lakshman.

We are using wiondows XP and oracle 8i.
I am able to ping the host where the database resides.
this problem occurs only when we try to connect this server form the client.I able to connect other servers without any problem.
I able to establish local connections.
I am trying tnsping database service.
client and the server are in same LAN only.
Pls give me a solution.
Thanks in advance.
-regs,
Lakshman.

ORA-12535: TNS:operation timed out (during DBLINK testing)

Hi,
I have created a database link using the follwoing script :
create database link UIIODS.WORLD
connect to <user_id>
identified by <pwd>
using '(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 147.147.3.41)(PORT = 1552))
(CONNECT_DATA =
(SERVICE_NAME = uiiods)
But when I am executing the sql : select * from [email protected]
it gives the error : ORA-12535: TNS:operation timed out.
I am trying to create the database link from a 9.2.0.5 database server and sid of this service_name is R2SRVR5.world.
Please find below TNS,sqlnet and listener entries of the server R2SRVR5.WORLD :
R2SRVR5_DBSRC.WORLD =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 157.227.6.39)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = R2SRVR5.WORLD)
UIIODS.PROD =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 147.147.3.41)(PORT = 1552))
(CONNECT_DATA =
(SERVICE_NAME = uiiods)
# SQLNET.ORA Network Configuration File: C:\oracle\ora92\network\admin\sqlnet.ora
# Generated by Oracle configuration tools.
# NAMES.DEFAULT_DOMAIN = tcskolkata.co.in
SQLNET.AUTHENTICATION_SERVICES= (NONE)
NAMES.DIRECTORY_PATH= (TNSNAMES, ONAMES, HOSTNAME)
# LISTENER.ORA Network Configuration File: C:\oracle\ora92\network\admin\listener.ora
# Generated by Oracle configuration tools.
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = tcs061243)(PORT = 1521))
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = C:\oracle\ora92)
(PROGRAM = extproc)
(SID_DESC =
(GLOBAL_DBNAME = R2SRVR5.WORLD)
(ORACLE_HOME = C:\oracle\ora92)
(SID_NAME = R2SRVR5)
(SID_DESC =
(GLOBAL_DBNAME = dbsrc.world)
(ORACLE_HOME = C:\oracle\ora92)
(SID_NAME = dbsrc)
(SID_DESC =
(GLOBAL_DBNAME = NEWDBSRC.WORLD)
(ORACLE_HOME = C:\oracle\ora92)
(SID_NAME = NEWDBSRC)
PING and TNSPING working fine,but DBLINK is not working.
Please provide a solution.
Thanks in Advance,
Koushik

Hi,
Sorry for late response. Please find below the timing for TNSPING.
C:\>ping 147.147.3.41
Pinging 147.147.3.41 with 32 bytes of data:
Reply from 147.147.3.41: bytes=32 time=246ms TTL=247
Reply from 147.147.3.41: bytes=32 time=242ms TTL=247
Reply from 147.147.3.41: bytes=32 time=237ms TTL=247
Reply from 147.147.3.41: bytes=32 time=227ms TTL=247
Ping statistics for 147.147.3.41:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 227ms, Maximum = 246ms, Average = 238ms
C:\>tnsping 147.147.3.41
TNS Ping Utility for 32-bit Windows: Version 10.1.0.2.0 - Production on 29-DEC-2005 15:03:49
Copyright (c) 1997, 2003, Oracle. All rights reserved.
Used parameter files:
C:\Oracle10g_Home\network\admin\sqlnet.ora
Used EZCONNECT adapter to resolve the alias
Attempting to contact (DESCRIPTION=(CONNECT_DATA=(SERVICE_NAME=147.147.3.41))(ADDRESS=(PROTOCOL=TCP)(HOST=147.147.3.41)(PORT=1521)))
OK (700 msec)
C:\>tnsping uiiods.prod
TNS Ping Utility for 32-bit Windows: Version 10.1.0.2.0 - Production on 29-DEC-2005 15:04:02
Copyright (c) 1997, 2003, Oracle. All rights reserved.
Used parameter files:
C:\Oracle10g_Home\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 147.147.3.41)(PORT = 1552))) (CONNECT_DATA = (SERVICE_NAME = uiiods)))
OK (580 msec)
Please suggest any solution.
Regards,
Koushik

ORA-12535: TNS:operation timed out on other pc

After installing the XE edition on a server, I can connect fine on the server itsself. But when I try to connect from a client machine, I get ORA-12535: TNS:operation timed out.
My tnsnames on the client holds this string for the XE db:
MyDB.10gXE =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = MYSERVER)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = XE)
any ideas???

Rather than
MyDB.10gXE =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = MYSERVER)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = XE)
why not go with the bulk standard tnsnames entry as follows:-
XE =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = MYSERVER)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = XE)
I don't think the qualified MyDB.10gXE name is adding any value and may well confuse things.
Although setting it for my environment does work
C:\Documents and Settings\mtownsen.ST-USERS>tnsping myDB.10gXE
TNS Ping Utility for 32-bit Windows: Version 10.2.0.1.0 - Production on 09-NOV-2
005 18:06:48
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Used parameter files:
C:\oraclexe\app\oracle\product\10.2.0\server\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = mtownsen
-lap.us.oracle.com)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_
NAME = XE)))
OK (40 msec)
OK - when I use your entry pasted directly from the above, with my server name, I get the following problem:-
C:\Documents and Settings\mtownsen.ST-USERS>tnsping myDB.10gXE
TNS Ping Utility for 32-bit Windows: Version 10.2.0.1.0 - Production on 09-NOV-2
005 18:07:43
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Used parameter files:
C:\oraclexe\app\oracle\product\10.2.0\server\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION =
TNS-12533: TNS:illegal ADDRESS parameters
I added back some spaces, as indicated by the . below, and it works fine
MyDB.10gXE =
(DESCRIPTION =
.(ADDRESS = (PROTOCOL = TCP)(HOST = mtownsen-lap.us.oracle.com)(PORT = 1521))
.(CONNECT_DATA =
.(SERVER = DEDICATED)
.(SERVICE_NAME = XE)
.)

ORA-12535 TNS:operation timed out from SQLPlus and Enterprise Manager Conso

I keep getting a ORA-12535 TNS:operation timed out error, when I try to start my Database.
I know its a timeout error, but I would like to know what is timing out and why. All I want is the database its self to run to allow me to connect to it via SQLPlus and JDBC.
Is there any information on what the following services do and which ones I need to have running to use the database.
Oracle OLAP 9.0.101
Oracle OLAP Agent
Oracle oraHome90Agent
Oracle oraHome90ClientCache
Oracle OraHome90PagingServer
OracleOra90SNMPPeerEncapsulator
OracleOra90SNMPPeerMasterAgent
OracleOra90STNSListener
Thanks for any help Tony

Either reconfigure CONNECT_TIMEOUT to be 0, which means wait indefinitely, or reconfigure CONNECT_TIMEOUT to be some higher value. Or, if the timeout is unacceptably long, turn on tracing for further information.
If you have oracle metalink, then read the following note;
Note:119706.1 - Troubleshooting Guide TNS-12535 & ORA-12535 Errors

ORA-12535: TNS:operation timed out on a win2000 Oracle instance

Hi,
i have a Oracle 8.1.5 instance on a WIN2000 PC.
I can connect me to this database with sqlplus
as long i stay on the PC (means i started the sqlplus
on the same machine).
When i try to connect from an other (unix-)system
i get after a while (ca. 90 sec.) the error:
ORA-12535: TNS:operation timed out
tnsping works fine (answer comes back in one second)
There are no firewalls or other "strange" things between
the database and the failing client (on an other PC,
also win2000, Oracle 8.1.5 everything works fine).
Below you see the log with debug of the listener.
I have also a trace on level SUPPORT but this is more
than 1000 lines for just 1 or 2 TNSPINGs and one SQLPLUS
connect. Due to this volume i decided not to attach it to
this initial mail.
Does any one have some advice or experiences ?
Please advice.
Best regards,
[email protected]
======================================================================
TNSLSNR for 32-bit Windows: Version 8.1.5.0.0 - Production on 19-APR-01 09:07:26
(c) Copyright 1998 Oracle Corporation. All rights reserved.
Die System-Parameterdatei ist D:\Oracle81\network\admin\listener.ora
Log-Meldungen wurden geschrieben in: D:\Oracle81\network\log\listener.log
Listen auf: (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=driller-nb)(PORT=1521))(PROTOCOL_STACK=(PRESENTATION=TTC)(SESSION=NS)))
TIMESTAMP * CONNECT DATA [* PROTOCOL INFO] * EVENT [* SID] * RETURN CODE
19-APR-01 09:07:28 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=)(USER=mdriller))(COMMAND=status)(ARGUMENTS=64)(SERVICE=LISTENER)(VERSION=135286784)) * status * 0
19-APR-01 09:08:04 * service_register * MDR50 * 0
19-APR-01 09:08:11 * trc_level * 0
19-APR-01 09:08:16 * trc_level * 0
---------------- BEGIN TNSLSNR DEBUG ---------------------
*** ENDPOINT #1 **
Name:
Address: (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=driller-nb)(PORT=1521))(PROTOCOL_STACK=(PRESENTATION=TTC)(SESSION=NS)))
Presentation: ttc
Session: NS
Info = <none>
Display: <none>
Load: 0
Handler ID = 80FFE377148D-41F8-AAC2-09A8BD4BE682
Oracle SID = <none>
Flags:
** INSTANCE #1 **
INSTANCE_NAME: MDR50
SERVICE_NAMEs: MDR50
INSTANCE LOAD: 0
INSTANCE ID: 4CC2FCDA6819-40D2-839D-F1628CC0BCA2
FLAGS: LOCAL
VERSION: 81500
NUM. HANDLERS: 2
Handler Matrix: (NS):
tcp nmp spx raw ipc beq lu62 tcps ANY
ttc 0 0 0 0 0 0 0 0 0
giop 0 0 0 0 0 0 0 0 0
http 0 0 0 0 0 0 0 0 0
ro 0 0 0 0 0 0 0 0 0
ANY 0 0 0 0 0 0 0 0 2
Handler Matrix: (RAW):
tcp nmp spx raw ipc beq lu62 tcps ANY
ttc 0 0 0 0 0 0 0 0 0
giop 0 0 0 0 0 0 0 0 0
http 0 0 0 0 0 0 0 0 0
ro 0 0 0 0 0 0 0 0 0
ANY 0 0 0 0 0 0 0 0 0
SERVICE HANDLERS:
Name: DEDICATED
Address: (ADDRESS=(PROTOCOL=beq)(PROGRAM=oracle)(ENVS=)(ARGV0=oracleMDR50)(ARGS='(LOCAL=NO)'))
Presentation: <none>
Session: <none>
Info = LOCAL SERVER
Display: DEDICATED SERVER
Load: 0
Handler ID = 83CB008C17A3-4E48-94DA-2765A62AAD7E
Oracle SID = <none>
Flags: BEQUEATH
Name: DEDICATED
Address: (ADDRESS=(PROTOCOL=BEQ)(PROGRAM=oracle)(ARGV0=oracleMDR50)(ARGS='(DESCRIPTION=(LOCAL=no)(ADDRESS=(PROTOCOL=BEQ)))'))
Presentation: <none>
Session: NS
Info = LOCAL SERVER
Display: DEDICATED SERVER
Load: 0
Handler ID = D9E0EC298D16-40FA-935F-7B989D139666
Oracle SID = MDR50
Flags: BEQUEATH CONNECTED DYNAMIC
** INSTANCE #2 **
INSTANCE_NAME: PLSExtProc
SERVICE_NAMEs: PLSExtProc
INSTANCE LOAD: 0
INSTANCE ID: 000000000000-0000-0000-000000000000
FLAGS: LOCAL
NUM. HANDLERS: 1
Handler Matrix: (NS):
tcp nmp spx raw ipc beq lu62 tcps ANY
ttc 0 0 0 0 0 0 0 0 0
giop 0 0 0 0 0 0 0 0 0
http 0 0 0 0 0 0 0 0 0
ro 0 0 0 0 0 0 0 0 0
ANY 0 0 0 0 0 0 0 0 1
Handler Matrix: (RAW):
tcp nmp spx raw ipc beq lu62 tcps ANY
ttc 0 0 0 0 0 0 0 0 0
giop 0 0 0 0 0 0 0 0 0
http 0 0 0 0 0 0 0 0 0
ro 0 0 0 0 0 0 0 0 0
ANY 0 0 0 0 0 0 0 0 0
SERVICE HANDLERS:
Name: DEDICATED
Address: (ADDRESS=(PROTOCOL=beq)(PROGRAM=extproc)(ENVS=)(ARGV0=extprocPLSExtProc)(ARGS='(LOCAL=NO)'))
Presentation: <none>
Session: <none>
Info = LOCAL SERVER
Display: DEDICATED SERVER
Load: 0
Handler ID = 56D4DAD11082-4097-992C-AF7F8067D858
Oracle SID = <none>
Flags: BEQUEATH
---------------- END TNSLSNR DEBUG ---------------------
19-APR-01 09:08:28 * debug * 0
19-APR-01 09:08:41 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=)(USER=mdriller))(COMMAND=status)(ARGUMENTS=64)(SERVICE=LISTENER)(VERSION=135286784)) * status * 0
19-APR-01 09:09:57 * ping * 0
19-APR-01 09:10:16 * (CONNECT_DATA=(SID=MDR50)(CID=(PROGRAM=)(HOST=slarti)(USER=mdriller))) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.10.34)(PORT=55678)) * establish * MDR50 * 0
19-APR-01 09:14:39 * trc_level * 0
19-APR-01 09:14:58 * trc_level * 0
19-APR-01 09:15:06 * trc_level * 0
19-APR-01 09:16:16 * trc_level * 0
19-APR-01 09:16:20 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=)(USER=mdriller))(COMMAND=status)(ARGUMENTS=64)(SERVICE=LISTENER)(VERSION=135286784)) * status * 0
19-APR-01 09:16:33 * trc_level * 0
19-APR-01 09:17:09 * ping * 0
19-APR-01 09:17:51 * (CONNECT_DATA=(SID=MDR50)(CID=(PROGRAM=)(HOST=slarti)(USER=mdriller))) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.10.34)(PORT=55695)) * establish * MDR50 * 0
19-APR-01 09:18:06 * MDR50 * (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.10.34)(PORT=55695)) * service_update * MDR50 * 0
19-APR-01 09:23:33 * (CONNECT_DATA=(SID=MDR50)(CID=(PROGRAM=)(HOST=deep-thought)(USER=mdriller))) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.10.22)(PORT=42006)) * establish * MDR50 * 0
19-APR-01 09:28:09 * MDR50 * (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.10.22)(PORT=42006)) * service_update * MDR50 * 0
19-APR-01 09:28:25 * ping * 0
null

Rather than
MyDB.10gXE =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = MYSERVER)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = XE)
why not go with the bulk standard tnsnames entry as follows:-
XE =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = MYSERVER)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = XE)
I don't think the qualified MyDB.10gXE name is adding any value and may well confuse things.
Although setting it for my environment does work
C:\Documents and Settings\mtownsen.ST-USERS>tnsping myDB.10gXE
TNS Ping Utility for 32-bit Windows: Version 10.2.0.1.0 - Production on 09-NOV-2
005 18:06:48
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Used parameter files:
C:\oraclexe\app\oracle\product\10.2.0\server\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = mtownsen
-lap.us.oracle.com)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_
NAME = XE)))
OK (40 msec)
OK - when I use your entry pasted directly from the above, with my server name, I get the following problem:-
C:\Documents and Settings\mtownsen.ST-USERS>tnsping myDB.10gXE
TNS Ping Utility for 32-bit Windows: Version 10.2.0.1.0 - Production on 09-NOV-2
005 18:07:43
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Used parameter files:
C:\oraclexe\app\oracle\product\10.2.0\server\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION =
TNS-12533: TNS:illegal ADDRESS parameters
I added back some spaces, as indicated by the . below, and it works fine
MyDB.10gXE =
(DESCRIPTION =
.(ADDRESS = (PROTOCOL = TCP)(HOST = mtownsen-lap.us.oracle.com)(PORT = 1521))
.(CONNECT_DATA =
.(SERVER = DEDICATED)
.(SERVICE_NAME = XE)
.)

TNS-12560: TNS:protocol adapter error, ORA-12535: TNS:operation timed out

I installed Oracle 9i (9.2.0.1.0) on a Windows XP machine (the machine is in a domain). There were no errors during the instalation, but I have problems connecting from the same machine using the sid. Here are some examples from a command promt:
D:\>tnsping orcl9i
TNS Ping Utility for 32-bit Windows: Version 9.2.0.1.0 - Production on 31-OCT-20
08 17:43:22
Copyright (c) 1997 Oracle Corporation. All rights reserved.
Used parameter files:
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)
(HOST = timisoara01)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = orcl9i)))
TNS-12560: TNS:protocol adapter error
D:\>sqlplus "sys/pass@orcl9i as sysdba"
SQL*Plus: Release 9.2.0.1.0 - Production on Fri Oct 31 17:54:54 2008
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
ERROR:
ORA-12535: TNS:operation timed out
Enter user-name:If I don't use the sid I can connect:
D:\>sqlplus "sys/pass as sysdba"
SQL*Plus: Release 9.2.0.1.0 - Production on Fri Oct 31 18:05:46 2008
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
Connected to:
Oracle9i Enterprise Edition Release 9.2.0.1.0 - Production
With the OLAP and Oracle Data Mining options
JServer Release 9.2.0.1.0 - Production
SQL>If I go to services I see that the service is running: OracleServiceORCL9I Started.
Thx.

Yes, the XP firewall is running. During the Oracle instalation it poped up twice, but I selected 'Unblock'. I can't turn it off because it is running using the domain settings, but I can add exceptions (programs or ports). Port 1521, tnsping or sqlplus are not blocked and there is an option 'Display a notification when Windows Firewall blocks a program' witch is checked.

TNS-12535: TNS:operation timed out

Hi,
Whenever we check Alertlog file according to regular health of Instance. We are facing the below issue very frequently
TNS-12535: TNS:operation timed out
ns secondary err code: 12606
nt main err code: 0
nt secondary err code: 0
nt OS err code: 0
Client address: (ADDRESS=(PROTOCOL=tcp)(HOST=172.17.100.108)(PORT=14375))
WARNING: inbound connection timed out (ORA-3136)

Hi,
Welcome to OTN form:
WARNING: inbound connection timed out (ORA-3136) please check following link: ORACLE DBA: inbound connection timed out (ORA-3136)
ORA-12535: TNS: operation timed out
Cause: The requested operation could not be completed within the time out period.
reference link: ORA-12535: TNS: operation timed out tips
Thank you

TNS-12535: TNS:operation timed out on Vista SP1 OS

Hi everyone,
I am starting to play with Oracle DB recnetly..
today I have TNS connection failed issue.
When I tried to use ODBC to connect Oracle XE DB, I got ORA-12535: TNS:operation timed out.
Here is basic info:
OS:Vista SP1
Oracle Version:Oracle Database 10g Express Edition Release 10.2.0.1.0
I can connect Oracle DB by http://localhost:8080/apex and sqlpus.
and check - telnet ellen.test.net 1521, it is working.
I have no idea why my TNS connection got timeout issue.
Did someone encounter the same issue before?
Thanks for any input in advance.
C:\>tnsping XE
TNS Ping Utility for 32-bit Windows: Version 10.2.0.1.0 - Production on 14-OCT-2
010 17:39:29
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Used parameter files:
C:\oraclexe\app\oracle\product\10.2.0\server\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = ellen.test.net)(PORT = 1521))
(CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = XE)))
TNS-12535: TNS:operation timed out
C:\>lsnrctl status
LSNRCTL for 32-bit Windows: Version 10.2.0.1.0 - Production on 14-OCT-2010 21:41:49
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC_FOR_XE)))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for 32-bit Windows: Version 10.2.0.1.0 - Produ
ction
Start Date 14-OCT-2010 16:50:35
Uptime 0 days 4 hr. 51 min. 14 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Default Service XE
Listener Parameter File C:\oraclexe\app\oracle\product\10.2.0\server\network\a
dmin\listener.ora
Listener Log File C:\oraclexe\app\oracle\product\10.2.0\server\network\l
og\listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC_FOR_XEipc)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=ellen.test.net)(POR
T=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=8080))(Presentation=
HTTP)(Session=RAW))
Services Summary...
Service "CLRExtProc" has 1 instance(s).
Instance "CLRExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "XEXDB" has 1 instance(s).
Instance "xe", status READY, has 1 handler(s) for this service...
Service "XE_XPT" has 1 instance(s).
Instance "xe", status READY, has 1 handler(s) for this service...
Service "xe" has 1 instance(s).
Instance "xe", status READY, has 1 handler(s) for this service...
The command completed successfully
for Instance"xe", I don't understand why I also got this error. Is there some wrong setting?_
file content: sqlnet.ora
SQLNET.AUTHENTICATION_SERVICES = (NTS)
file content:tnsnames.ora
XE =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = ellen.test.net)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = XE)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
ORACLR_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
(CONNECT_DATA =
(SID = CLRExtProc)
(PRESENTATION = RO)
file content: listener.ora
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = C:\oraclexe\app\oracle\product\10.2.0\server)
(PROGRAM = extproc)
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = C:\oraclexe\app\oracle\product\10.2.0\server)
(PROGRAM = extproc)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
(ADDRESS = (PROTOCOL = TCP)(HOST = ellen.test.net)(PORT = 1521))
DEFAULT_SERVICE_LISTENER = (XE)

Is it related?I can not say it is related with 100% certainty.
You can conclude I had a REALLY lucky guess or there is high correlation between VM & having TNS-12535 error.
It is your system & you are free to (ab)use it any way you choose to do so.
We both know SQL*Net can & does work as advertised, but requires a properly configured OS & Network underneath it.

TNS:operation timed out - on different subnets

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